TW201351775A - Antenna and wireless communication device using the same - Google Patents

Abstract

The disclosure relates to an antenna and a wireless communication device using the same. The antenna includes a base board, a radiating body partially surrounding the base board, a first ground member, a second ground member and a feed member. The base board includes a ground plane. The first ground member, the second ground member and the feed member are positioned between the base board and the radiating body, and respectively them. The radiating body is a metal portion of a frame of the wireless communication device.

Description

Antenna and wireless communication device with the same

The present invention relates to an antenna and a wireless communication device having the same, and more particularly to an antenna operating in a GPS (Global Position System) frequency band and a wireless communication device having the same.

An antenna is usually disposed in the wireless communication device, and the radio wave is transmitted and received by the antenna to transmit and exchange radio data signals. At the same time, in order to obtain a metallic appearance, the housing of the wireless communication device is increasingly made of metal. However, the metal casing of the wireless communication device easily interferes with the antenna disposed therein, causing the frequency offset of the antenna and affecting the stability of the communication performance of the antenna.

In addition, the conventional antenna generally needs to occupy a large space in the wireless communication device, which is disadvantageous for miniaturization of the wireless communication device.

In view of this, it is necessary to provide an antenna with stable communication performance and small space.

In addition, it is necessary to provide a wireless communication device having the above antenna.

An antenna is disposed in a wireless communication device, the wireless communication device includes a housing, the housing is surrounded by a frame, the antenna includes a substrate, a radiator surrounding the periphery of the substrate, a first ground end, and a second a grounding end and a feeding connector; the substrate is provided with a connection region, the first grounding end, the second grounding end and the feeding connection member are disposed between the substrate and the radiator, and are respectively connected to the substrate and the radiator, wherein The radiator is the metal part of the frame.

A wireless communication device includes a housing, the housing enclosing a frame, the wireless communication device further comprising an antenna disposed in the wireless communication device, the antenna comprising a substrate, a radiator disposed at a periphery of the substrate, and a first a grounding end, a second grounding end, and a feeding connector, wherein the substrate is provided with a connection region, and the first grounding end, the second grounding end and the feeding connection member are disposed between the substrate and the radiator, and respectively respectively The radiator is connected, and the antenna is a metal portion of the frame.

The radiator of the antenna of the present invention is formed by the metal portion of the frame, and is integrated with the outer casing of the wireless communication device, and does not need to occupy the space in the wireless communication device, which is advantageous for miniaturization of the wireless communication device. In addition, since the radiator is disposed outside the wireless communication device, its operation is not easily interfered by other components of the wireless communication device, and the performance is stable.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a wireless communication device 100 according to a preferred embodiment of the present invention includes a housing 10 and an antenna 30 .

The housing 10 is the outer casing of the wireless communication device 100. A frame 11 is provided around the casing 10. The frame 11 is substantially rectangular. The frame 11 includes a metal portion 111 and a non-metallic portion 112 connected to the metal portion 111, such as a plastic.

The antenna 30 includes a substrate 31, a radiator 32, a first ground end 33, a second ground end 34, and a feed connection 35.

The substrate 31 is substantially a rectangular plate body, and includes a top surface 311, two opposite first side surfaces 312 and two opposite second side surfaces 313 extending perpendicularly from the top surface 311. In the preferred embodiment, the substrate 31 is a main board of the wireless communication device 100, and the top surface 311 is provided with a connection area 314 to provide grounding for the antenna 30.

The radiator 32 is a bent metal sheet. The radiator 32 is substantially "U" shaped and includes two first radiating sections 321 arranged in parallel and a second radiating section 322 connecting the first radiating sections 321 . The radiator 32 is disposed on the substrate 31. The two first radiating segments 321 are respectively disposed in parallel with a first side surface 312. The second radiating portion 322 is spaced apart from the second side surface 313 to form a radiator. 32 partially surrounds the substrate 31. In the preferred embodiment, the radiator 32 is formed by the metal portion 111 of the frame 11, which can be formed by exposing the metal portion 111 to the casing 10 or by inserting a metal portion 111 into an injection molding manner. Inside the housing 10. In order to prevent the frequency of the antenna 30 from being displaced due to the user's use of the wireless communication device 100 to contact the radiator 32, an outer layer of the radiator 32 may be provided with an insulating layer.

The first ground end 33 and the second ground end 34 are both substantially rectangular metal sheets, and the shapes and sizes of the two are substantially the same. The first grounding end 33 is disposed between one of the first radiating sections 321 and the corresponding first side 312, and the two ends are respectively connected to the first radiating section 321 and the corresponding first side 312. The second grounding end 34 is disposed between the second radiating section 322 and the corresponding second side 313, and is connected to the second radiating section 322 and the corresponding second side 313 respectively. The feed connector 35 can be a wire disposed between the second radiating section 322 and the corresponding second side 313, and located on the side of the second ground end 34, and the two ends are respectively opposite to the second radiating section 322 and the second Side connected.

When the wireless communication device 100 is used for wireless communication, the signal is transmitted from the substrate 31 to the radiator 32 via the feed connection 35, or is received by the radiator 32 and transmitted to the substrate 31 via the feed connector 35, thereby achieving signal reception. And send.

Referring to FIG. 4 and FIG. 5, in the preferred embodiment, the antenna 30 can operate in a GPS (Global Position System) frequency band, and change the position of the first ground end 33 on the substrate 31. The resonant frequency of the antenna 30 can be adjusted to operate in other operating frequency bands.

The radiator 32 of the antenna 30 of the present invention is formed by the metal portion 111 of the frame body 11, and is integrated with the outer casing of the wireless communication device 100, and does not need to additionally occupy the space in the wireless communication device 100, thereby facilitating wireless communication. The device 100 is miniaturized. In addition, since the radiator 32 is disposed outside the wireless communication device 100, its operation is not easily interfered by other components of the wireless communication device 100, and the performance is stable.

100. . . Wireless communication device

10. . . case

11. . . framework

111. . . Metal part

112. . . Non-metallic part

30. . . antenna

31. . . Substrate

311. . . Top surface

312. . . First side

313. . . Second side

314. . . Connected area

32. . . Radiator

321. . . First radiant section

322. . . Second radiant section

33. . . First ground

34. . . Second ground

35. . . Feed connector

1 is a schematic diagram of a wireless communication device in accordance with a preferred embodiment of the present invention.

2 is a schematic diagram of an antenna in accordance with a preferred embodiment of the present invention.

3 is a schematic plan view of the antenna shown in FIG. 2.

4 is a diagram showing a return loss of the antenna shown in FIG. 2.

FIG. 5 is a graph showing the efficiency test of the antenna shown in FIG.

30. . . antenna

31. . . Substrate

311. . . Top surface

312. . . First side

313. . . Second side

314. . . Connected area

32. . . Radiator

321. . . First radiant section

322. . . Second radiant section

33. . . First ground

34. . . Second ground

35. . . Feed connector

Claims (11)

An antenna is disposed in a wireless communication device, the wireless communication device includes a housing, and the housing is surrounded by a frame, wherein the antenna comprises: a substrate, a radiator surrounding the periphery of the substrate, and a first ground a second ground end and a feed connection; the substrate is provided with a connection region, the first ground end, the second ground end and the feed connection member are disposed between the substrate and the radiator, respectively, and the substrate and the radiation The body is connected, and the radiator is a metal part of the frame. The antenna of claim 1, wherein the radiator has a "U" shape, and includes two first radiation segments arranged in parallel and a second radiation segment connecting the two first radiation segments. The antenna of claim 2, wherein the substrate is a rectangular plate body, comprising a top surface, two opposite first sides perpendicular to the top edge and two opposite second sides, The first radiating segments are respectively disposed in parallel with a first side, and the second radiating segments are spaced apart from one of the second sides. The antenna of claim 1 or 3, wherein the substrate is a main board of a wireless communication device. The antenna of claim 3, wherein the first ground end is disposed between one of the first radiating segments and the corresponding first side; the second ground end is disposed between the second radiating segment and the corresponding first Between the two sides; the feed connector is disposed between the second radiating section and the corresponding second side, and is located on a side of the second ground end. A wireless communication device includes a housing, the housing enclosing a frame, wherein the wireless communication device further includes an antenna disposed in the wireless communication device, the antenna including a substrate, and radiation disposed at a periphery of the substrate a first ground end, a second ground end, and a feed connection, the substrate is provided with a connection region, and the first ground end, the second ground end and the feed connection member are disposed between the substrate and the radiator, and Connected to the substrate and the radiator respectively, the antenna is the metal portion of the frame. The wireless communication device of claim 6, wherein the radiator has a "U" shape, and includes two first radiation segments arranged in parallel and a second radiation segment connecting the two first radiation segments. The wireless communication device of claim 7, wherein the substrate is a rectangular plate body comprising a top surface, two opposite first sides perpendicular to the top edge and two opposite second sides The two first radiating segments are respectively disposed in parallel with a first side, and the second radiating segment is disposed in parallel with one of the second sides. The wireless communication device of claim 8 or 6, wherein the substrate is a motherboard of the wireless communication device. The wireless communication device of claim 8, wherein the first grounding end is disposed between one of the first radiating segments and the corresponding first side; the second grounding end is disposed at the second radiating segment and corresponding to The feed connection is disposed between the second radiating section and the corresponding second side and on a side of the second ground end. A wireless communication device includes a housing, a frame enclosing the housing, and a main board disposed in the housing. The improvement is that the wireless communication device includes a first ground end and a feed connector. In the connection area, the frame body includes a metal portion and a non-metal portion connected to the metal portion, and the metal portion of the frame body is connected to the connection region via the first ground end and the feed connection member as a radiator, and is first The grounding end and the feeding connector form an antenna together.